Hawaii State Energy Conservation Code
Residential Code: The Hawaii State Energy Conservation Code is based on the 2009 IECC with Hawaii-specific amendments.
Commercial Code: The Hawaii State Energy Conservation Code is based on the 2009 IECC with Hawaii-specific amendments.
Citation: Hawaii Administrative Rules (HAR) 3-181
Application: Mandatory statewide. Counties of Hawaii can modify the statewide code, as long as the codes are at least as stringent as the statewide code (see below).
Local Adoptions: Counties of Hawaii can modify the statewide code, as long as the codes are at least as stringent as the statewide code.
Hawaii County adopted the amended 2006 IECC in October 2010
Maui County adopted and amended 2006 IECC in October 2009
Honolulu County adopted and amended 2006 IECC in November 2009
Kauai County adopted and amended 2009 IECC in May 2010
Approximate Stringency: As stringent as 2009 IECC.
Effective Date: February 1, 2012.
Background: On October 13, 2009, the Hawaii Building Code Council approved the 2006 IECC with state-specific amendmentsto update the Hawaii State Energy Conservation Code (3 HAR 181) after hearings in each of the state's four counties (Oahu, Maui, Hawaii, Kauai) on September 30, 2009. The code was filed as an Administrative Directive and signed by then-Gov. Linda Lingle. It was filed with the Office of the Lt. Governor on May 13, 2010, and became effective 10 days later on May 24, 2010.
After over a year of work by the 2009 IECC subcommittee of the Hawaii Department of Business, Economic Development, and Tourism, the Hawaii Building Code Council has developed a proposal to update the Hawaii State Energy Conservation Code to the 2009 IECC with substantial state-specific strengthening amendments intended to serve as a model for warm weather areas worldwide. Depending on when the state's four counties introduce bills to adopt the code locally, the effective in each county will probably be early or late spring of 2012. Publicity and training for all interested parties will take place before adoption.
Enforcement Process: For all commercial buildings and all residential structures over three stories in height, field inspections by the County Public Works Department (Design & Construction Department in the city and county of Honolulu) are conducted during the established inspection process mandated by the building code. No special procedures are required to enforce the energy requirements.
Enforcement for state buildings is handled by the County Building Departments. State buildings are specifically cited in the state law that mandated which counties must adopt the HMEC or equivalent.
Compliance Process: Low-rise residential buildings (for counties adopting the residential portion of the HMEC) may use a single prescriptive envelope path. Plans are submitted when required by the County Public Works Department. Local jurisdictions require that a registered architect or engineer review and stamp the plans and provide a written statement indicating compliance with the code requirements. However, local jurisdictions still have the obligation to oversee the actual plans that are submitted during the established plan review functions.
Information last updated May 1, 2015